Ignition-dynamo.



C. T. MASON.

IGNI'HON DYNAMO.

APPLICATION FILED JULY 28. 1913.

Patented Mar.21,1916.

2 SHEETS-SHEET l.

N on? C. T. MASON.

IGNITION DYNAMO.

APPLICATION FILED JULY 28 I91 1,176,476. V Patented Mar. 21,1916.

2 SHEETS-SHEEI UNITED STATES PATENT OFFICE.

SOUTH CAROLINA, ASSIGNOR, BY MESNE CAL f'fiMPANY, 0F NEWARK, JERSEY,

IGNITION- D YNAMO.

Application filed July 28,

To (132 u'fiom 2'15 may smzcem:

known that 1, CHARLES Tuonms .1 citizen of the Uhiied States, 115-- itSummer, in the ennui; 0f S1,:mtw (if South (Ruuhnu, have invented newand useful Improvement in nwilvnzunos, n1" which the foilmvmg is Q.:ificzxtion, referenwe being had in tho the switch to the bait new.Thcscfirm often hvcoming hwkvn or xmscmmected, are a frmifnl source (iftroukfie.

Another objuct to employ the same interrupt mechanism for both hum-r;and magnet).

A furthvr nhjoct to phylum: :1 Hi1 aimpie dual svsterm 'invhniing M]parts hf thv same except the baitmv in n self mu tain'sd singficstruvturo, with ani v iihv hat fem wism u 0021:1904;

Am form of max A anituhle 11 M of an ignitmn w wntinn. Fig. 2; ismevhnnicn" vontml F551. 3 is; :1 View of a ing 15 SGUTK? Spesificaficnof Letters ZPatent Patented Mar. 2.1, 1916.

15 13. Serial No. 781,695.

rota! wi' the nmgmatu, 0r it may be any shaft piacvd 011 the magneto forthe purpose. Thig: muman insulated disk 2 sumi mting the hmahm and Abrush 6 is. carried in 3 munfimu but pames; through 2 2 mm? 1111;! same.

i r :1" mnuumun' Segments carried m; which they are Suitably mrpportedby the insnhatml arranged to be shiftable in manner, toward or away fromand 6, The stud 10 is corrnvntly supported axially of the rotor shaft 1hy means of a suitable casing and in such a manner as to be easilyrecipromtefi. Such "support indic'ated generaliy in Fig 3. the casinghousing 11m commutm tor parts. heing either the same casing which huh.iha interrupter contacts of the, mag-- mm W a similar casing located oneither (mil of the .umchim. The details of this :1rrzzng vz'lwnr, areimmaterial The switch 212%; 11 i: suitably pivoted to the "frame of the1111521011) as shown at 12 and is operated by the nul 13.

The magneto is provided with the usual primary mu] svcondary windings 14and 15,

nqml interrupter mevhanism indime b the insuhn',\ uf, and 10. and is anysuitablu the brushes 2,

and H14 sand at H which is operated by th0 usual van; 2?. A 'nmiensm 18is,c nnacted in muiiipic with the primzu :md interru i hi. 5211155 andtheir functinns; are aireaziy well known. so I ({0 I101; (h'iSU'lbfitheir atnmgvswmi in detail.

"Hm phztv 9 being in the position shuwn 2} 5 i W that ii; anti hasc-inun naim' him? 7 and are m cnm'rct 251th ihe 1.: w: I and 6, and 1suitable sourve 01' current being vflmmitcd w the wires 19 and currentxvi-H {hm from cfinduitor a shgment 7. bz'nwh disk 2, brush 5. 1. .T 9*J1. and mm- (znndnctor to side w the intm'zuptE-r UL and the primm-vimiing ll, Suppos ng the inks! mph-,2" wntacts {.0 M; No K in W L U)?:gurrwar Xvi pas sums these and i0 H19 nmchme imjhcntod mim'fs f0 mm?H'fifi mind or frame of th :34. which it: connciteii to h s shaft nnthm' h'wmher l bv brush 01' in any ather Ruitzflde Inunnen and frumthence to mnsh 6, svgn'zem', 8. and Yinv u-mductor 2H i0 the batmrv. camrv'vr/MR the im rruptvr COKALECtS are upeneil and. 2-11 5: Q nt than.

the generated electromotive rents. As a second function, combinedwiththe first, the commutator acts in its entirety flows through theprimary winding 14, thereby inducing current in the secondary 15 andcausing a spark in the usual manner at the plug 26.

The foregoing describes the system employing the battery as a sourceof--current, this usually being the case when the magneto is beingslowly revolved, as when starting the engine. When it is desired to usethe current generated by the magneto and cut out the battery, handle 27may be pushed in one notch thereby moving it from the spring stop '28where lever 11 is held when battery is employed, to the spring stop 29.Thismoves plate 9 carrying the commutator, to the left, as shown in Fig.2, thereby withdrawing the commutator segments 7 and 8 from the brushes4 and 6, and also withdrawing plate 9 from brush 5. This operationdisconnects the battery from the circuit, and the magneto is now free toop; crate. To stop the magneto current, handle 27 is pushed in to theextreme right-hand spring stop 30, which grounds stem 21 oh a suitablecontact 31, thereby short-circuit? ing the primary winding 14: andinterrupter contacts 16 and stopping the generation of current.

It will be observed that since the battery commutator is entirely out ofcontact with the brushes, no mechanical wear takes place when thebattery is not actually in use,

With this understanding of the details of my invention, it will be clearthat the commutator, as one function, reverses the battery connectionwith respect to the interrupter and primary winding of the magneto,

as the rotor turns through each half revolution, whereby the batterycurrent always flows through the primary winding in direction to beaugmented (and not opposed) by the currents being generated by themagneto. The commutator segments are geared to the rotor in properangular relation so that they pass battery current in phase with forcesor curas a. switch to disconnect the battery and stop the mat'hiue.-

While I hav shown my invention embodied in a switch mounted inconnection with the usual interrupter casing, on one end of the magneto,I do not wish to confine myself to this location for the switch as itmay be mounted anywhere about the magneto. Instead of brush contacts,the switch may consist of spring members suitably operated by any formof rod or lever, it being understood that my invention consists broadlyof a combination with the usual magneto, of a switch mechanism mountedon or in connection with the magneto and adapted to be suitably operatedthereby. \Vhen the switcn mechanism is mounted on the magneto instead ofat a remote point, intermediate connections are wholly eliminated asabove set forth.

Having thus described my invention what I claim and desire to secure byLetters Patent is- 1. An ignition system comprising a dynamo and abattery, an induction coil common to both, said coil being normallyconnected to derive current from the operation of said dynamo, and acombined commutator and switch driven in synchronism with the dynamo andcontrolling the connection of the battery with said induction coil sothat when its switch contacts are closed the battery current and thedynamo current will augment and not oppose each other.

'2. An ignition system comprising a dyname and a battery, an inductioncoil common to both, said coil being normally connected to derivecurrent from the operation of said dynamo, and a combined commutator andswitch driven in synchronism with the dynamo and controlling theconnection of the battery with saidinduction coil with means to closeand open the commutator switch contacts to connect and disconnect thebattery to and from the dynamo and coil, respectively.

3. An ignition system comprising a dyname and battery, an induction coilcommon to hot said coil being normally connected to derive current fromthe operation of said dynamo, and a combined commutator and switchdriven in synchronism with the dynamo and controlling the connection ofthe battery withsaid induction coil with means to move the commutator asa unit so as to open'its contacts andydisconncct the battery from thecoil, and a separate contact adapted to be closed by continuing saidmovement, so as to disable the dynamo.

4. An ignition system comprising a dynamo and a battery, an inductioncoil common to both, said coil being normally connected to derivecurrent from the operation of said dynamo, and a combined commutator andswitch driven in synchronism with the dynamo and controlling theconnection of the battery with said induction coil with manuallycontrolled means for opening the commutator switch contacts todisconnect the battery at will.

5. An ignition system comprising a dynamo and a battery, an inductioncoil common to both, said coil being normally connected to derivecurrent from the operation of said dynamo, and a combined comnected toderive current from the operation of said dynamo, and a combinedcommutator and switch driven in synchronism with the dynamo and.controlling the connection.

of the battery with said induction coil with means to shift thecommutator into any one of three separate positions, in the first ofwhich the battery is connected with the induction coil through thecommutator as described, in the second the battery is dis connected fromthe induction coil by separation of the contacts of the commutator andthe coil is supplied with energy by the dynamo alone, and in the thirdposition the dynamo is disabled.

7. In an ignition system in combination, a dynamo excited primarywinding, a battery, interrupter contacts arranged to intermittentlyshort-circuit said primary winding, a commutator driven in synchronismwith'said dynamo and through contacts of which said battery is connectedwith said primary, winding and said interrupter contacts, means to shiftthe commutator contacts to disconnect the battery from the winding andinterrupter contacts but to leave the dynamo connected there saidcontacts and said winding.

8. In an ignition system a dynamo and a battery having a commoninduction coil and a combination commutator switch unit through whichthe battery is connected with the primary winding of said-inductioncoil, said unit being mounted upon said dyna mo and having itscommutator contacts driven by the, rotating element thereof.

4 9. In combination a magneto electric machine having generatingwindings, a polarity reversing commutator mounted thereon but normallydissociated from said generating windings and having its elementsmounted for combined movement as a switch, together with means to impartsaid movement thereto. a

10. In combination a magneto electric machine having generatingwindings, a polarity with, and additional means to shunt circuitreversing commutator normally dissociated from said generating windingsand having an element mounted for anal reciprocating movement, togetherwith means to reciprocate said commutator element axially andshuntcircuiting contacts associated with said gei'ierating winding andarranged to be closed through'the axial movement of the commutatorelement.

11. In combination a magneto electric machine haying a generatingwinding, a battery, a commutator therefor comprising relatively fixedand movable contacts normally dissociated from the terminals of saidgenerating winding, means to shift the corn tacts of said commutator outof engagement with each other for switching and circuit controllingcontacts for said generating Winding operable throughthe shiftingiofsaid commutating contacts.

12. In combination a dynamo excited induction coil, dynamo operatedinterrupter contacts, and a normallyppen shunt-circuit for the primarywinding of said coil all connected commonly in multiple with each other,together with a battery and a dynamo driven switching commutator throughwhich said battery is adapted to be connected in multiple with theaforesaid elements. Y

13. In combination a dynamo excited in duction coil, dynamo operatedinterrupter contacts, anda normally open shunt-circuit for the primarywinding of said coil. all

connected commonly in multiple with each other, together with a.battery-and a dynamo driven commutator through which said battery isconnected in multiple with the aforesaid elements and means todisconnect the battery and at will close said normally open shuntcircuit, by shifting the commutator.

14. In an ignition system, a dynamo, a battery, a coil, variable circuitconnections adapted to produce energization of said coil by the dynamoorby the battery, and means for controlling said circuit connec tionscomprising a switch and a commutator combined in one piece of mechanismmount ed as a unit on the dynamo and forming therewith a singleselfecontained piece of apparatus.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses.

CHARLES THOMAS MASON. Vitnesses F. C. MANNING, H. R. VAN DEVENTER.

